www.nasa.gov
National Aeronautics and Space Administration
SCIENCE & MISSION SYSTEMS
Sean W. ThompsonEXPRESS Rack Project ManagerNASA Marshall Space Flight [email protected]
Lee P. JordanMSG Project ManagerNASA Marshall Space Flight [email protected]
An Overview of ExPRESS, WORF, and MSG Platforms
3rd Annual ISS R&D ConferenceJune 18, 2014
Ginger N. Flores, MSFC ISS Payloads OfficeNASA Marshall Space Flight [email protected]
https://ntrs.nasa.gov/search.jsp?R=20140011706 2020-03-24T22:34:11+00:00Z
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Outline
Payload Rack Facilities Expedite the Processing of Experiments to Space
Station (EXPRESS) OverviewWindow Obserervational Research Facility (WORF)
OverviewMicrogravity Science Glovebox (MSG) Overview
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EXPRESS Rack
EXpedite the PRocessing of Experiments to Space Station (EXPRESS) Rack is a multi-use facility which provides standard interfaces and resources for 8 locker-type and 2 drawer-type payloads
Payload Interfaces Power: 28 Vdc Data: Ethernet, RS-422, Analog,
Discrete Video: NTSC Cooling: Air (all locations) and Water (2
locations per rack) Vacuum Exhaust (1 location per rack) Nitrogen Supply (1 location per rack)
EXpedite the PRocessing of Experiments to Space Station (EXPRESS) Rack is a multi-use facility which provides standard interfaces and resources for 8 locker-type and 2 drawer-type payloads
Payload Interfaces Power: 28 Vdc Data: Ethernet, RS-422, Analog,
Discrete Video: NTSC Cooling: Air (all locations) and Water (2
locations per rack) Vacuum Exhaust (1 location per rack) Nitrogen Supply (1 location per rack)
EXPRESS Rack 1, 7/9/13
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EXPRESS Rack Front View
Upper Connector Panel
Lower Connector Panel
Utility Interface Panel
ISIS Drawers (2)
Lockers (8 locations)
L1
L2
L4
L3
L5
L6
L7
L8
ISIS01 ISIS02
Utility Drawer
EXPRESS Laptop Computer (ELC)
International Standard Payload Rack
Secondary Structure & Subsystems
8/2 Payload Configuration
(8 Middeck Lockers,2 ISIS Drawers)
EXPRESS 8/2 Configuration
Payload configuration options:• Insert into a NASA-provided
ISS Locker• Integrate into an
International SubrackInterface Standard (ISIS) Drawer
• Design single unit to replace 1, 2, or 4 lockers.
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EXPRESS Rack Front View
Upper Connector Panel
Lower Connector Panel
Utility Interface Panel
ISIS Drawers (2)
Lockers (8 locations)
L1
L2
L4
L3
L5
L6
L7
L8
ISIS01 ISIS02
Utility Drawer
EXPRESS Laptop Computer (ELC)
International Standard Payload Rack
Secondary Structure & Subsystems
8/2 Payload Configuration
(8 Middeck Lockers,2 ISIS Drawers)
EXPRESS 8/2 Configuration
Payload configuration options:• Insert into a NASA-provided
ISS Locker• Integrate into an
International SubrackInterface Standard (ISIS) Drawer
• Design single unit to replace 1, 2, or 4 lockers.
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EXPRESS ISS Locker Details
Payloads can either be locker “inserts” or locker “replacements”
Features 4 rear captive fastener
attachments Installation tool guides on 4
corners Friction hinge Dual door locks 3 removable panels on door Rear internal closeout
removed for active payloads Internal dimensions (ref)
Width 17.340 in. Height 9.970 in. Depth 20.320 in.
Weight – 13 lbs. empty Internal Volume – 2 ft3
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Front ViewFront View
EXPRESS Subrack Payload Mounting
Mounting for 8 single ISS lockers (or equivalent) and 2 ISIS drawers Subsystem equipment located behind connector panels or mounting plates Mounting for 8 single ISS lockers (or equivalent) and 2 ISIS drawers Subsystem equipment located behind connector panels or mounting plates
AIR INLET(To Payloads)
AIR OUTLET(From Payloads)
LOCKER PAYLOAD
MOUNTING HOLES
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FRONT PANEL
HANDLE
LATCH
EXAUST FAN
OPENING
DATA CONNECTOR
RETENTION
SLIDE
ASSEMBLY
STOP MECHANISMPOWER CONNECTOR
ASSEMBLY REAR PANEL
Features Blind-mate connectors Locking handles Internal dimensions (ref)
15.94 x 5.88 x 23.23 in. Weight – 26 lbs empty Volume – 1.26 ft3
EXPRESS Powered ISIS Drawer
NASA provides a powered ISIS drawer
for ground integration of powered payloads
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Rear ViewRear View
EXPRESS Subsystems
RIC: Rack Interface Controller Provides command and control of
rack subsystems and payloads and interfaces with the ISS Payload MDM.
Collects health and status from rack subsystems and payloads.
SSPCM: Solid State Power Control Module Receives ISS main power and
provides power to rack subsystems and payloads.
Provides discrete and analog I/O to payloads and rack subsystems.
AAA: Avionics Air Assembly Provides air cooling to payloads and
exchanges heat with the Moderate Temperature Loop.
Circulates air for smoke detection
RIC: Rack Interface Controller Provides command and control of
rack subsystems and payloads and interfaces with the ISS Payload MDM.
Collects health and status from rack subsystems and payloads.
SSPCM: Solid State Power Control Module Receives ISS main power and
provides power to rack subsystems and payloads.
Provides discrete and analog I/O to payloads and rack subsystems.
AAA: Avionics Air Assembly Provides air cooling to payloads and
exchanges heat with the Moderate Temperature Loop.
Circulates air for smoke detection
RIC
SSPCM
AAA
Smoke Detector
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PEHB
EXPRESS Subsystems
PEHB: Payload Ethernet Hub Bridge Provides primary means of
communication between EXPRESS rack, the payloads, and the ISS.
Provides 10 Mbps Ethernet data packet transfer between payloads, laptops, and the RIC and provides a bridge to the ISS LANs for telemetry downlink.
Command and data interface to EXPRESS laptop.
PEHG: Payload Ethernet Hub Gateway Will replace PEHB in 2015 (est.)
100 Mbps Ethernet
PEHB: Payload Ethernet Hub Bridge Provides primary means of
communication between EXPRESS rack, the payloads, and the ISS.
Provides 10 Mbps Ethernet data packet transfer between payloads, laptops, and the RIC and provides a bridge to the ISS LANs for telemetry downlink.
Command and data interface to EXPRESS laptop.
PEHG: Payload Ethernet Hub Gateway Will replace PEHB in 2015 (est.)
100 Mbps Ethernet
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ELC: EXPRESS Laptop Computer Dedicated to EXPRESS rack
operations Crew can view rack displays Crew can command rack and
payloads Payload can have applications
installed Lenovo T61p Windows XP SP2 operating system
Upgrade to Windows 7 within 2 years
ELC: EXPRESS Laptop Computer Dedicated to EXPRESS rack
operations Crew can view rack displays Crew can command rack and
payloads Payload can have applications
installed Lenovo T61p Windows XP SP2 operating system
Upgrade to Windows 7 within 2 years
EXPRESS Subsystems
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EXPRESS Subsystems
Payload Cooling Moderate Temperature Loop (MTL)
MTL circulates water through rack
Payloads have MTL cooling access at the upper and lower connector panels
500 W per payload position x 2 positions per rack
AAA – “Rear Breather” payloads (1200 W total rack)
Cabin Heat Load – “Front Breather” payloads (very limited)
Thermal Shutdown RIC monitors 2 internal sensors that are configured by the PRO (usually a flow sensor and a
temperature sensor)
RIC will shut down all active payloads and rack if both sensors are out of limits
Fire Detection System (FDS) Provides fire detection for the rack
Payload Rear Breathers
ISS/EXPRESS-provided by smoke detector within rack
Payload Front Breathers
Payload-provided parameter monitoring delivered through health & status data to PL MDM
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EXPRESS Payload Resources
ResourceAmount per Payload Position
StructuralAttachmentPowerThermal Control
AirThermal Control
WaterData
Video
Venting
Nitrogen
Locker ISIS DrawerAttachment to Rack per IDD•Mass constraint launch vehicle dependent
5, 10, 15, or 20 Amp at 28 VDC
Nominal 150 W (1200 W rack maximum)
500 W Heat Rejection per position (2 positions per rack)
•1 - RS-422•1 - Ethernet
•2 - +/- 5 Vdc Analog•3 - 5 Vdc Discrete (bi-dir)
NTSC/RS 170A feed from payload source (Shared)
1 payload interface per rack (Shared)
1 payload interface per rack (Shared, 12 lbm/hr)
Attachment to Rack per ISIS Spec•64 lb within cg constraints
Nominal 150 W (1200 W rack maximum)
1 payload interface per rack (Shared)
5, 10, 15, or 20 Amp at 28 VDC
•1 - RS- 422•1 - Ethernet
•1 - +/- 5 Vdc Analog•2 - 5 Vdc Discrete (bi-dir)
NTSC/RS 170A feed from payloadsource (Shared)
500 W Heat Rejection per position (2 positions per rack)
1 payload interface per rack(Shared, 12 lbm/hr)
Reference: EXPRESS Rack Payloads Interface Definition Document, SSP 52000-IDD-ERPReference: EXPRESS Rack Payloads Interface Definition Document, SSP 52000-IDD-ERP
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Software Toolkit for Ethernet Lab-Like Architecture (STELLA)
Developed by Boeing, STELLA provides a generic software toolkit for Payload Developers to accommodate all of the unique software formatting required to communicate with the ISS.
STELLA easily adapts Ethernet-based (TCP/UDP) software used in ground laboratories to software for conducting research on ISS; it enables a command and telemetry environment from ISS that is analogous to a terrestrial laboratory’s control and data acquisition environment.
STELLA functionality highlights: – Payload commanding and
payload file uplink – Remote console access
to flight payload computer– Payload telemetry
downlink and file downlink via the ISS Ethernet LAN
– Payload health and status data routing to the Payload Operations Integration Center
Boeing assists Payload Developers with STELLA software integration as a standard ISS integration service
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Payload Testing for EXPRESS Rack
Payload to rack interfaces verified efficiently for both Payload Developer and ISS
End-to-end data flow from payload to rack to HOSC to PD ground station.
Human Factors Team evaluates hardware locally Payload operations flight controller familiarization Validation of crew procedures
Payload to rack interfaces verified efficiently for both Payload Developer and ISS
End-to-end data flow from payload to rack to HOSC to PD ground station.
Human Factors Team evaluates hardware locally Payload operations flight controller familiarization Validation of crew procedures
Payload shipment to launch site or PD
Off-gas
Vibration
EMI/EMC
AcousticsAdditional Services Available
Payload shipment to MSFC
EXPRESS Rack Functional Checkout Unit (MSFC)Payload
Virtual Private Network
C&DH remote test possible using VPN
Rack simulator s/w provided for
development
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EXPRESS Payload Resources
ResourceAmount per Payload Position
StructuralAttachmentPowerThermal Control
AirThermal Control
WaterData
Video
Venting
Nitrogen
Locker ISIS DrawerAttachment to Rack per IDD•Mass constraint launch vehicle dependent
5, 10, 15, or 20 Amp at 28 VDC
Nominal 150 W (1200 W rack maximum)
500 W Heat Rejection per position (2 positions per rack)
•1 - RS-422•1 - Ethernet
•2 - +/- 5 Vdc Analog•3 - 5 Vdc Discrete (bi-dir)
NTSC/RS 170A feed from payload source (Shared)
1 payload interface per rack (Shared)
1 payload interface per rack (Shared, 12 lbm/hr)
Attachment to Rack per ISIS Spec•64 lb within cg constraints
Nominal 150 W (1200 W rack maximum)
1 payload interface per rack (Shared)
5, 10, 15, or 20 Amp at 28 VDC
•1 - RS- 422•1 - Ethernet
•1 - +/- 5 Vdc Analog•2 - 5 Vdc Discrete (bi-dir)
NTSC/RS 170A feed from payloadsource (Shared)
500 W Heat Rejection per position (2 positions per rack)
1 payload interface per rack(Shared, 12 lbm/hr)
Reference: EXPRESS Rack Payloads Interface Definition Document, SSP 52000-IDD-ERPReference: EXPRESS Rack Payloads Interface Definition Document, SSP 52000-IDD-ERP
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Microgravity Science Glovebox (MSG)
• MSG facility provides an enclosed working area for investigation manipulation and observation in the ISS. Provides two levels of containment via physical barrier, negative pressure, and air filtration .
• The MSG facility is ideally suited to provide quick, relatively inexpensive access to space for Physical Science, Life Science, and Biological Science Investigations.
• The Microgravity Science Glovebox (MSG) is a payload rack facility designed for microgravity investigation handling aboard the International Space Station (ISS).
• The unique design of the facility allows it to accommodate science and technology investigations in a “workbench” type environment
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WORF Objectives/Description
Project Objectives• The Window Observational Research Facility (WORF) Rack is a
unique facility designed for use with the US Lab Destiny Module window.
• WORF provides valuable resources for Earth Science payloads along with serving the purpose of protecting the lab window.
– The facility is used for remote sensing instrumentation test and validation in a shirt sleeve environment.
– WORF payloads will be able to conduct terrestrial studies utilizing the data collected from utilizing WORF and the lab window.
Description
• Launched in April 2010 on 19A• Rack Facility using standard ISPR and EXPRESS heritage hardware• Provides Power and Data interfaces for up to 5 payloads• Provides avionics air cooling for instruments and crew comfort; Moderate Temperature
Loop Water cooling for avionics• Provides stable mounting platform and “darkroom” environment for payload instruments
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WORF Stowage
Volume
Rack Front Closeouts
Front ConnectorPanel
Vent Assy,4 Places
Aisle-Side Hatch Assy• Vents• Hatch• Aisle Panel
Shutter Actuator Handle
Bump Shield Handle
Utility Outlet Panel
WORF Front View
The WORF Rack front face consists of the following:
• Front connector panel• Aisle side hatch• Hatch vent assemblies• Shutter Actuator Handle• Bump Shield Handle• Stowage Volume• Utility Outlet Panel (UOP)
connection
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WORF – Aisle Hatch
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WORF
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WORF – Bump Shield
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WORF- Soft goods
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WORF - Resources
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WORF – Specific Considerations
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MSG Facility Hardware Overview
Engineering Unit Located at MSFC
Removable Side Ports16” diameter on both Left and
Right sides for setting up hardware in Work Volume
Glove Ports Four identical glove ports
are located on the left and right side loading ports and
the front window
DC Power SwitchingAnd Circuit Breakers
Video System Drawer
Stowage Drawers
Front Window Glove PortsFour 6” diameter glove ports can be fitted with any of three different sized gloves or blanks
AirlockProvides a “Pass Through” for hardware to enter the Work Volume without breaking Containment. The lid of the Air Lock opens up into the floor of the Work Volume
Airlock Glove Port with BlankA Single 4” diameter glove port can also be fitted with any of three different sized gloves or a blank
Stowage Drawers
Core FacilityRetractable Core Facility includes the Work Volume, Airlock, Power Distribution & Switching Box, and the Command and Monitoring Panel
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• Work Volume(WV) - Volume – 0.255 m3 = 255 liters
• Work Volume - Dimensions – 906mm wide x 637mm high – 500mm deep (at the floor)– 385mm deep (at the top)
• Maximum size of single piece of equipment in WV (via side access ports)
– 406mm diameter
• Payload Attachment– M6 threaded fasteners in floor, ceiling, &
sides
• Power available to investigation – +28V DC at useable 7 amps– +12V DC at useable 2 amps– -12V DC at useable 2 amps– +5V DC at useable 4 amps– +120V DC at useable 8.3 amps
• Maximum heat dissipation – 1000W Total
• 800W from coldplate• 200W from air flow
• General illumination – 1000 lux @ 200mm above WV floor
• Video – 4 color Hitachi HV-C20 cameras– 2 Sony DSRV10 Digital Recorders – 2 Sony GV-A500 Analog 8mm Recorders
• Data handling connections – Two RS422-to-MSG for investigations– One MIL-BUS-1553B-to-MSG for communication via MLC– Ethernet LAN 1 and LAN 2 (in US LAB)– MSG Laptop Computer (MLC) – IBM T61P
• Filtration – 12 HEPA/charcoal/catalyst WV filters
• 1 HEPA/charcoal/catalyst Airlock filter • Up to Two Levels of Containment
– Physical barrier of MSG structures, gloves, etc.– Negative pressure generated by MSG fans.
• Other resources available – Gaseous Nitrogen– Vacuum (VRS & VES)
Current MSG-Provided Payload Interfaces/Resources
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MSG Investigations
Payload Name & AcronymSponsoring Organization Type of Investigation
Combustion Synthesis under Microgravity Conditions (COSMIC) ESA CombustionMicrogravity Experiment for the Measurement of Diffusion Coefficients in Crude Oil (DCCO) ESA Diffusion
NANOSLAB ESA Zeolite Crystal Growth Protein Microscope for the International Space Station (PromISS-1,2,3, & 4) ESA Protein Crystal Growth
ARGES ESA Light Bulb TechnologyHEAT ESA Heat Pipe Technology
Selectable Optical Diagnostics Instrument (SODI) ESA Diffusion and Soret PhenomenaCell Wall/Resist Wall (CWRW) JAXA Plant Growth
Coarsening in Solid Liquid Mixtures-2 (CSLM-2) NASA Material ScienceInvestigating the Structure of Paramagnetic Aggregates from Colloidal Emulsions (InSPACE-1,2, & 3) NASA Magnetorheological (MR) Fluids
IntraVenous Fluids GENeration and mixing (IV-Gen) NASA Human HealthSmoke Aerosol Measurement Experiment (SAME) NASA Spacecraft Smoke Detection
Shear History Extensional Rheology Experiment (SHERE) NASA Polymer Smoke Point Coflow Experiment (SPICE) NASA Combustion
Critical Velocities in Open Capillary Channels (CCF) NASA FluidsStructure and Liftoff in Combustion Experiment (SLICE) NASA Combustion
Burning and Suppression of Solids (BASS) NASA CombustionBoiling eXperiment Facility (BXF) NASA Heat Transfer
Pore Formation and Mobility Investigation (PFMI) NASA Material ScienceSolidification Using a Baffle in Sealed Ampoules (SUBSA) NASA Material Science
Rodent Research NASA Life Science3D Printer NASA Technology Demonstration
Bioculture Systems NASA Life ScienceObservation and Analysis of Smectic Islands in Space (OASIS) NASA Material Science
Zero Boil-Off Tank (Z-BOT) NASA Heat TransferPacked Bed Reactor Experiment (PBRE) NASA Physical Science
Transparent Alloys ESA Material Science
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• Materials utilized by Life Science/Biological Research payloads will require additional capabilities for handling and clean up:
– Filtration System: a capability added to the existing MSG Work Volume air circulation system that scrubs typical life science biological and chemical contaminants from the MSG Work Volume air.
– Decontamination System: a capability to reduce released biological contaminants (Bio Safety Levels (BSL) 1 and 2) to levels safe for crew exposure and a capability to remove released contaminants from surfaces within the Work Volume.
– Exchangeable Glove System this is more suited for various life science activities.
MSG LSAH Upgrades
MSG Life Science Filters
Glove & Gauntlet Configuration
Iris & Gauntlet w/Disposable Glove
Decontamination System
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Decontamination System
• New Decontamination Capability within MSG Work Volume
— Decontaminate before experiment to prevent contamination of biological samples
— Decontaminate after experiment to disinfect any released biological materials
• Ground-based labs typically use UV Light or Ozone
Ultraviolet germicidal irradiation is a sterilization method that uses ultraviolet light at sufficiently short wavelength to break down microorganisms. It is used in a variety of applications, such as food, air and water purification.
MSG Decontamination System
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Current MSG Video System
Pictured above in the bottom left drawer location of theMSG Engineering Unit, the MSG Video Drawer is shownconnected to two video monitors. The Video Drawer is themain component of the MSG Video System.
In additional to accommodating 4 exchangeable video recorders, the Video Drawer contains power, communications, and remote control systems. The front panel allows for the crew to switch power to individual cameras, recorders, and monitors and to connect the various external components, including cameras and monitors.
Hitachi HV-C20 Color Camera
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Typical MSG Video System Setup
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REMOTE POWER DISTRIBUTION ASSEMBLY
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POWER DISTRIBUTION AND COVERSION BOX (PDC)
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COMMAND AND MONITORING PANEL (CMP)
TEST INTERFACES. EXPERIMENT PWR OUTLETS
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ILLUMINATION UNITSBEHIND
W301 Video Extension Cables camera inside the work volume to the front panel of the Video Drawer via the video feed-thru.
The Video Drawer supports up to four cameras which can be located inside or outside the Work Volume. This example shows two cameras inside the Work Volume connected to the interior connectors of the video feed-thru.
Video Feed-thru’s can be installed in any or all of the three feed-thru ports located on the upper-left, upper-right, and lower right of the Work Volume.
SONY
SONY
Two Video Monitors connect to the front panel of the Video Drawer. They could be located inside the Work Volume if required.The Video Touchpad can be connected to
either monitor or to the front Panel of the Video Drawer. It allows the crew to command the Video Drawer with a GUI display on the monitor.
The Video Drawer contains the video recorders, switcher, converters, and commanding system. Commands can be initiated from crew via the touchpad, from the ground, or from the experiment hardware.
P47LAN 2
P46LAN 1
VacuumWasteGas
TCSMODSupply
TCSMODReturn
P31553BBus A
P41553BBus B
P1MainPwr
GN2
P16OptVideo
P43FDS
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Video System Overview
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•The MSG Video Upgrade Equipment (VUE) will be capable of recording, storing, and transferring high definition/high resolution/high speed, color digital video data to ISS for downlinking.
• The VUE will utilize significantly higher video resolution and speeds than the existing MSG video system thereby enhancing research observation activities
• The MSG VUE consist of the following enhancements:– Powered ISIS drawer containing computer control and supporting electronics – High speed/high resolution cameras– High definition video cameras– GigE compatibility– Six terabytes of data storage via two 2 Tb Solid State RAID drives and two 1 Tb
conventional hard drives.– Digital video data output capabilities for ISS
to ground downlink. Downlink rates - up to 6 Mbps or higher depending on available bandwidth of the ISS LAN.
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Summary
• These facilities on board ISS have been used for a large body of research in material science, heat transfer, crystal growth, life science, smoke detection and combustion research, plant growth, human health, and technology demonstration
• Process improvements and enhancements continue to improve the accommodations and make the integration and operations process more efficient.
• MSG and EXPRESS are ideal platforms for gravity-dependent phenomena related research. Moreover, ISS provides engineers and scientists a platform for research in an environment similar to the one that spacecraft and crew members will actually experience during space travel and exploration.
• The successful on-orbit operations and versatility of the EXPRESS Racks and MSG has facilitated the operations of many scientific areas, with the promise of continued payload support for years to come.
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BACK UP
12/20/2007